Where does “Dover” come from?
Dover (Portuguese) comes from English Dover, from Old English Dofras, from Latin Dubris, from Brythonic Dubras, from Proto-Celtic dubros, from Proto-Indo-European dʰubʰrós, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.
Ancestry of “Dover”, step by step